US Bridges

County HWY 45 over Johns Creek

FairPosted for load

Sangamon County, Illinois · 3.0 N of Lowder · Structure no. 084500400000000

Built
1939
86 years old
Condition
Fair
inspected March 2023
Type
Culvert
Concrete Continuous
Length
28 ft
3 main spans
Daily traffic
175
2022 count
Owner
County
County Highway Agency

About this bridge

County HWY 45 over Johns Creek is a concrete continuous culvert carrying County HWY 45 over Johns Creek in Sangamon County, Illinois. It was built in 1939, so it is 86 years old, older than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 175 vehicles a day, roughly 11% of them trucks, projected to reach 202 by 2046. The structure is 28 ft (8.6 m) long and 31 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesCounty HWY 45
CrossesJohns Creek
Location3.0 N of Lowder
RouteCounty Highway 0
CountySangamon County
StateIllinois
Coordinates39.59698, -89.84211
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating18.2 US tons
Inventory rating10.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadH 15
Structure length28 ft (8.6 m)
Longest span9 ft (2.8 m)
Deck width31 ft (9.5 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic175 (2022)
Projected traffic202 by 2046
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was County HWY 45 over Johns Creek built?

It was built in 1939, making it 86 years old in 2025.

What condition is County HWY 45 over Johns Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in March 2023.

How much traffic does County HWY 45 over Johns Creek carry?

About 175 vehicles per day (2022 count), of which roughly 11% are trucks.

How long is County HWY 45 over Johns Creek?

The structure is 28 ft (8.6 m) long with a longest span of 9 ft (2.8 m) and a deck 31 ft wide.

Who owns County HWY 45 over Johns Creek?

It is owned by the County Highway Agency.